4月28日上午10:28，深圳轨道交通12号线科海区间左线盾构区间顺利贯通(即科技馆站—海上田园东站)，该区间右线盾构区间已于4月2日贯通。至此该线路首个盾构区间实现双线贯通。

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地铁12号线起自南山区左炮台站，终至宝安区海上田园东站;线路全长约40.54km，全线采用地下敷设方式;共设站33座，其中换乘站18座。

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科海区间(科技馆站-海上田园东站)是地铁12号线北端的最后一个区间，其左线全长1471.5米、右线全长1470.8米。该区间沿途主要为粉质黏土、砂质黏性土、全强风化混合花岗岩，地质条件复杂，施工难度较大。

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因此，盾构机需要↓

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穿越长度110米、350米小曲线半径的淤泥地层

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下穿与大海连通的8万平米海上田园景区水域

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侧穿最近距离仅2米的钻孔桩基础建筑物群60米

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为此，项目部创新应用、科学施工，以确保盾构施工顺利掘进：

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✅运用盾构远程监控系统

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详细记录各项参数并及时传输至地面监控系统，便于科学掌握盾构掘进动态，大数据的应用为后续施工积累了丰富的经验;

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✅配备电瓶车语音报警系统

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以确保电瓶车在区间滑行过程中，能够提前预报视线死角信息，大幅度降低了因视野不足导致的电瓶车碰擦;

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✅配备吊装语音报警装置

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利用红灯绿灯信号及时反馈隧道危险信息，确保了盾构物资吊装安全可控;

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✅推进盾构渣土处理的试点

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通过建立盾构渣土处理设施，推动盾构渣土泥水分离，达到既环保又能重复利用的良好效果;

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✅针对梳理出的风险源

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项目定期组织质量分析会，对每环掘进参数、管片实际楔形量、错台或者破损数据进行质量分析，总结成型管片质量，及时调整盾构机姿态，提高管片成型质量，确保拼装质量美观;

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✅设置多岗位联动机制

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设置了地上地下维保班组、调度、盾构机长等岗位，从而将各班组人员明确分工，责任到人，不断推进盾构施工的专业化发展。

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承担此区间掘进任务的“开拓者五号”、“开拓者六号”盾构机分别于2019年8月16日和10月9日始发，其中右线于2020年4月2日洞通，左线于2020年4月28日洞通，总共历时200多天。

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截至目前，全线已有29台盾构下井，其中27台先后始发并累计掘进10385米。矿山法隧道开挖初支累计完成3935米，7座车站主体结构封顶，主体结构完成率达27%。

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地铁12号线像一条绳索，串联起了南山中心区、宝安中心区、福永片区、大空港及会展片区的轨道交通骨干线路。

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预计2022年建成后，不仅能缓解南山片区、宝安片区交通拥堵压力，还能支撑深圳西部发展轴带建设!

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(来源：深圳市轨道交通)

以上是网络信息转载，信息真实性自行斟酌。